In her recent fan Q&A interview with Bussworthy Kylie answered the question:

Would you ever duet with Britney Spears?

Kylie answered (parts of it): Part 2 of the interview where she mentions Brit: (1:47)


Part 1 of the interview can be watched here:

__

I really hope this happens

my two queens on one track. it would be too much..

for her video choices.

Yas Kylie

Great!

I would just die

We all would
Queen Kylie + Princess Britney

I'm here for that, get that popsmash Kylie!

This needs to happen! Britney said she'd love to collaborate with Kylie too!

it would slay so much

Kylie the queen just needs to do a duet album with all the relevant queens.

THIS
At least include 2-4 pop-collabs on her next album!

MTV Buzzworthy (Full Interview)

OMG,i'm here for this collab!!!

Would be very cool! Could get Kylie some sales in the US, and Britney some in UK/Oz.

I would KILL for Kylie to collaborate with Britney, Gaga, and Madonna.

Updated the OP with them! Thanks.

True tea

I thought about the same! Great for both parts

I need her + Gaga on a track sometime!

THE MELTDOWN THAT WOULD ENSUE UPON MY SOUL....